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Aggregate (domain-driven design)

Domain-Driven Design (DDD) me aggregate ek modeling concept hai jo batata hai ki domain objects ko…

Overview

Aggregate (domain-driven design) — Quick Facts

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Field: Value

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Type: DDD modeling concept

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Core idea: consistency boundary define karna

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Key elements: aggregate root, entities, value…

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Infobox

🤖 | Field | Value | |---|---| | Type | DDD modeling concept | | Core idea | consistency…

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Overview

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Domain rules ko ek central place…

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Data updates ko predictable banana

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Concurrency issues ko manageable…

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Simple definition

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Aap aggregate ke andar ki state ko…

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External code ko direct internal…

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Aggregate root

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External code sirf root ko…

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Root ke methods business…

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Root internal entities/value…

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Order aggregate me Order root ho…

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Invariants and consistency boundary

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Order ka total negative nahi ho…

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Paid order ko cancel karne ke liye…

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Aap ek transaction me boundary ke…

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Boundary ke bahar ke systems ke…

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Transactions and concurrency

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Aggregate ke andar changes usually…

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Concurrency handle karne ke liye…

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Cross-aggregate multi-entity…

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Designing aggregates

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Aggregate small rakho, sirf strong…

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Frequent updates agar ho rahe…

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Cross-aggregate rules ke liye…

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Example: Order aggregate

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Order (root)

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OrderItem (internal)

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Money (value object)

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Add item

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Concepts table

🤖 | Concept | Simple meaning | Example | |---|---|---| | Aggregate | consistency boundary |…

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Design signals table

🧠 | Signal | Usually good | Usually bad | |---|---|---| | Aggregate size | small, focused…

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Mermaid (command flow)

💡 `mermaid flowchart LR U[User/Client] --> A[Application Service] A --> C[Command:…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Aggregate (domain-driven design) ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Aggregate (domain-driven design) ka 'Type' kya hai?

Complete! 🎉

Aggregate (domain-driven design) Complete!

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